Spring-wheel.



A. SIMPSON.

SPRING WHEEL. A PPL ICATION FILED MAY 24' 1915.

1,179,235. Patented Apr. 11,1916. 7

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Y which the hub is provided, and is ALEXANDER SIMPSON, OF MAPLETON, IOWA.

1 0 all whom) it may concern Be it known that I, ALEXANDER SIMPSON, a citizen of the United States, residing at Mapleton, in. the county j of Monona and State of Iowa, have invented certainnew and useful Improvements in Spring-'Wheels; and I do hereby declare the. following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention is an improved spring wheel, adapted for use on automobiles and other vehicles, the object of my invention being to provide a spring pense-d with. which absorbs shocks and greatly, promotes the comfort of the persons the guides,

in the car.

,()ne object of the invention is to effect improvements in the construction of the spokes.

Another object is to provide improved means for cushioning the spokes.

Another object is to 'provide bracing springs which are arranged between the spokes and which serve to distribute stresses evenly between them.

The invention consists in' theconstruction, combination and arrangement of devices hereinafter described and claimed.

In the accompanying l is partly an elevation [and partly asectional view of a portion of aspring wheel constructed in accordance with inyiinvention. Fig. 2 is an inverted transverse sectional view of the same. Fig. 3 is atop plan view of fragmentary portions of the loosely connected ends of two of the spoke shoes, the hinge barrels being in horizontal section.

In the embodiment of my invention, I provide a hub 1, an inner rim 2 which is concentric with the hub and-is spaced therefrom, plates 3 being secured on opposite sides of and connecting the hub and the inner rim, said plateshave peripheral vportions 4; which are provided with hollow radial guide arms 5, which in effect form inner spoke members. Bolts 6 secure the inner rim between the plates as shown. An innerpneumatic or other suitable elastic tire 7 is arranged ina peripheral groove 8 with also ar- Y Specifieationof Letters Patent. I

. the'inner ends of the bores wheel which enables the 'use of a pneumatic tire to be dis on the outer spoke has a segmental shoe 17 at its outer drawings z- Figure loosely connected Patented Apr. 11, 1916,

Application filed May-24, 1915. Serial n5. 30,1 :8;

ranged in the annular chamber formed between the hub, the inner rim, and the plates 3.

' Radially their inner ends pivotally mounted as at 10 in recesses 11 in the periphery of the inner rim 2 and at points correspondingwith the centers of; the" guides 5.

The spokes 12are tubular, the plunger rods are arranged 1n of the spokes and cushioning springs 13 which are shown as coiled springs are arranged in the spoke bores and bear betweenlthe bottomsof said arranged plunger rods 9- have bores and the outer endsot the plunger rods as shown. heads'l t at their innerends which operate radially. in the guides 5, the spokes extending through openings in the outer ends of and the heads are connected by rods 15 with curved. plates 16 which-bear side of the inner tire 7. Each end, the said "shoe forming segmental members of the outer rim of-the being pr'ovided'in its outer side with a channel-to receive a segmental member 18 of an -outer tire. A rubber or other suitable outer tire may be employed, as desired.

f The-outer'tire members 18 aresegmental and correspond in length with segmental spoke shoes 17 The at their ends at points he tween-the spokes by hinges 19; To permit ot-this-loose connection,-the pintles 19 of the hinges 19 are, as shown in Fig. 3 of the drawings, afiorde'd a moderate" degree of.

play. Arouatebracing strings central portions secured to the 20 have their opposing sides of the spokes and serving to strengthen the construction of the wheel while enabling the wheel to spring and yield to concussion and to absorb shocks.

When the wheel of the spokes are resisted both by the springs 13 and the inner elastic tire 7 so that the wheel is very resilient and absorbs shocks wheel and each spoke shoes 17- are said hinges 4 and hence connected to the rim, the ends of said bracing springs bearing aga nstthe' The spokes are provided with is in use inward thrusts tion of the several parts Without departing from the spirit of the invention and within the scope of'the appended claim.

Having thus described my invention, I,

claim A Wheel of the class described comprising ahub, an inner rim, an inner, elastic tire on the hub, radially arranged plunger rods connected at their inner ends to the rim,

radially arranged guides also connected to,

and projecting outwardly from the inner rim, tubular spokes having heads arranged for radial movement in said guides, connections between said heads and the innertire,

@opiea of this parent may be obtained for five cents each, by addressing the Washington, D. (2.

ALEXANDER SIMPSON.

Witnesses:

W. J. HANBRICH, ROY A. JOHNS.

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